Finding the Fourth Proportional to 11,375.54, 15,584.58 and 10,949.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,375.54 : 15,584.58 = 10,949.42 : x
2. Step 2: Convert to fraction form
   11,375.54/15,584.58 = 10,949.42/x
3. Step 3: Cross multiply
   11,375.54x = 15,584.58 × 10,949.42
4. Step 4: Simplify right side
   11,375.54x = 170,642,111.94
5. Step 5: Solve for x
   x = 170,642,111.94/11,375.54
6. Step 6: Final answer
   x = 15,000.79